Mark Anthony B. Aruta, Gerald P. Galvez, Kevin Lester L. Mabalay, Jeric R. Aduna, Rick Donald S. Manzon, and Lorinda E. Pascual. “Rebar Safety End Caps”. International Journal of Progressive Research in Science and Engineering, vol. 4, no. 8, Aug. 2023, pp. 120-6, https://journal.ijprse.com/index.php/ijprse/article/view/974.